title: Antibiotic uptake by vegetable crops from manure-applied soils.
abstract: This study quantified the uptake of five antibiotics (chlortetracycline, monensin, sulfamethazine, tylosin, and virginiamycin) by 11 vegetable crops in two different soils that were fertilized with raw versus composted turkey and hog manures or inorganic fertilizer. Almost all vegetables showed some uptake of antibiotics from manure treatments. However, statistical testing showed that except for a few isolated treatments the concentrations of all antibiotics in vegetable tissues were generally less than the limits of quantification. Further testing of the significant treatments showed that antibiotic concentrations in vegetables from many of these treatments were not significantly different than the corresponding concentrations from the fertilizer treatment (matrix effect). All five antibiotic concentrations in the studied vegetables were <10 μg kg(-1). On the basis of the standards for maximum residue levels in animal tissues and suggested maximum daily intake based on body weight, this concentration would not pose any health risk unless one is allergic to that particular antibiotic.
authors.affiliation: Department of Soil, Water, & Climate, University of Minnesota , 1991 Upper Buford Circle, St. Paul , Minnesota 55108, United States.
authors.forename: Dong Hee
authors.initials: DH
authors.lastname: Kang
authors.forename: Satish
authors.initials: S
authors.lastname: Gupta
authors.forename: Carl
authors.initials: C
authors.lastname: Rosen
authors.forename: Vincent
authors.initials: V
authors.lastname: Fritz
authors.forename: Ashok
authors.initials: A
authors.lastname: Singh
authors.forename: Yogesh
authors.initials: Y
authors.lastname: Chander
authors.forename: Helene
authors.initials: H
authors.lastname: Murray
authors.forename: Charlie
authors.initials: C
authors.lastname: Rohwer
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000032:analysis / Q000378:metabolism*; D005308:Fertilizers / Q000032:analysis; D008372:Manure / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism*; D013552:Swine; D014422:Turkeys; D014675:Vegetables / Q000737:chemistry / Q000378:metabolism*
chemical_list: D000900:Anti-Bacterial Agents; D005308:Fertilizers; D008372:Manure; D012987:Soil; D012989:Soil Pollutants